TRANSPARENT CONDUCTIVE FILM LAMINATE

• Main Authors: SAKAI KAZUYA, KATO HISATO
• Format: Patent
• Language: English; Japanese
• Published: 02.07.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CALCULATING; COMPUTING; CONDUCTORS; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; INSULATORS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PHYSICS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TRANSPORTING

To provide a transparent conductive film laminate that prevents occurrence of wrinkles and has an excellent yield.SOLUTION: A transparent conductive film laminate 1 has a protective base material 4, an adhesive layer 5 and a transparent conductive film 3 in this order in a vertical direction. The transparent conductive film 3 has a transparent base material 6 and a transparent conductive layer 9 in this order in the vertical direction. A transparent base material 6 is a cycloolefin-based film. The protective base material 4 is a polycarbonate film. When the transparent conductive film laminate 1 is cut in a form of a rectangle of 20 cm×20 cm in a plan view, the transparent conductive layer 9 is put over it, and it is heated at 130°C for 90 minutes, during and after the heating, the transparent conductive film laminate 1 is curled so that its center 10 sticks out downwards than four corners 11, and an average height of the center 10 and the four corners 11 is 15 mm or less.SELECTED DRAWING: Figure 1 【課題】しわの発生を抑制し、歩留まりが良好である透明導電性フィルム積層体を提供すること。【解決手段】透明導電性フィルム積層体１は、保護基材４、粘着剤層５および透明導電性フィルム３を上下方向に順に備える透明導電性フィルム積層体１であって、透明導電性フィルム３は、透明基材６および透明導電層９を上下方向に順に備え、透明基材６は、シクロオレフィン系フィルムであり、保護基材４は、ポリカーボネート系フィルムであり、透明導電性フィルム積層体１を２０ｃｍ×２０ｃｍの平面視矩形状に切断し、透明導電層９を上側となるように載置し、１３０℃で９０分間加熱した際に、加熱中および加熱後において、透明導電性フィルム積層体１の中央部１０が四隅部１１よりも下側に突出するようにカールし、中央部１０と四隅部１１との平均高さが１５ｍｍ以下となる。【選択図】図１